The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 21, 2012
Filed:
Jan. 07, 2009
Sophie Marquais-bienewald, Hegenheim, FR;
Christian Cremer, Lörrach, DE;
Olof Wallquist, Bottmingen, CH;
Robert Hochberg, Merzhausen, DE;
Sophie Marquais-Bienewald, Hegenheim, FR;
Christian Cremer, Lörrach, DE;
Olof Wallquist, Bottmingen, CH;
Robert Hochberg, Merzhausen, DE;
BASF SE, Ludwigshafen, DE;
Abstract
Disclosed are polymeric dyes obtained by the reaction of (a) a basic polycondensate with (b) an electrophilic dye of formula (2) P—X—YAn; wherein the basic polycondensate (a) is obtained by the reaction of (a) an amine of formula (I) in the presence of an anhydrous solvent with an ammonium salt (a) with a cyanamide: Wherein P, X, Y, a+, a, a, a, An, R, R, R, R, R, Rand A are defined in the claims and in the disclosure. The present invention also relates to compositions comprising these polymeric dyes, to a process for their use for dyeing of organic materials, such as keratin fibers, wool, leather, silk, cellulose or polyamides.